A Chimp Uses a Fallen Tree Branch to Escape from a Zoo

A visitor at the Belfast Zoo in Northern Ireland filmed some chimpanzees attempting a breakout on Saturday. They had propped a fallen tree branch against the enclosure's wall and then climbed to the top.

The branch is already leaning against the wall when the clip starts and you see a couple of chimps making their way to the top. One of them does escape . . . although it returned later.